Sofa



FIG. 1 shows a perspective view of the sofa;

FIG. 2 shows a front view of the sofa;

FIG. 3 shows a left side view of the sofa;

FIG. 4 shows a right side view of the sofa;

FIG. 5 shows a top view of the sofa;

FIG. 6 shows a rear view of the sofa;

FIG. 7 shows a bottom view of the sofa;

FIG. 8 shows a perspective view of the sofa with a footrest and headrest on the left section of the sofa shown in an alternate position; and,

FIG. 9 shows a perspective view of the sofa with a headrest on the right section of the sofa shown in an alternate position. 

CLAIM The ornamental design for a sofa, as shown and described. 